Method of securing together slats, staves, or other sectional devices



H. M. BISHOP 1,890,597

METHOD OF SECURING TOGETHER SEATS, STAVES, OR OTHER SECTIONAL DEVICES Dec. 13, 1932.

Original Filed April 15, 1929 INVENTO Patented Dec. 13, 1932 UNITED STATES PATENT OFFJTI-CE Y HOWARD M. BISHOP, OF TORONTO, ONTARIO, CANADA. i

METHOD 0F SECURING TOGETHER sLArrs srAvEs'oR QTHER fsEo'rIoNALnEvions Application filed. April 15,1929, Serial .No. 355,159, and in Canada-December 18, 1928. Renewed March 3, 1932. a i i The invention relates to improvements in methods of securing together slats, stavesor other sectional devices as described in the present specification and shown in the accompanying drawing that forms a part of the same.

The main object of the invention is to make possible an absolutely liquid-tight container through the provision of means whereby the slats, staves or other sectional elements of which the container is formed may be secure- 1y bound together in edgewisecontact against relative movement in any direction.

A further object is the provision of a simple and inexpensive binding element, consisting'of ordinary wire, which may be easily prepared through the employment of'a simple tool and readily adapted to the container.

And generally the objects of the invention are to provide a simple and efficient method of securing together slats, staves or other seetional elements in edgewise contact whereby a strong, sturdy container may be constructed expeditiously and at small cost.

The invention consists in the novel featuresof construction, arrangements and combinations described in the present specification and more particularly pointed out in the claims for novelty following.

Hitherto it has been common practice in the construction ofbarrels to insert a flat metal band, substantially arcuate in cross section, in a spiral groove previously cut in the outer surface of the barrel and to flatten out said band so that same will provide an undercut at each side-of the groove, but it has been found that this method tends to split the stave and thus weaken the barrel, else the cutting of the groove tends to weaken the staves as no provision is made for refilling the space left by the removal of the material in the grooving process, furthermore, the flattened band can frequentlybe drawn longitudinally of the groove and this permits of relative movement of adjacent staves and results in the barrel not being liquidtight, g

The present invention differs from the known method described above in that the binding element is provided with laterally said teeth will enter the wood at each side of extending teeth which are adapted to, be forced downwardly. into the 'wood at each side ofthe groove, which is adapted to recei've the central uncut portion of. said binding element but is not ofsufficient width to .55 permit of, the teeth entering same. The wood is therefore not split, or rendered susceptible to splitting, nor is it weakened in any way as the wire completely fills the cut and takes the place of the material which has been removed in the grooving process.

In the drawing Figure l is a side elevation of a portion of a barrel having its staves bound together according to my method.

. Figure 2 is an enlarged plan detail of-portions of three staves bound together. c

Figure 3 is a longitudinal sectional view through a portion of astave with the binding element shown in cross section butnot inserted in the groove in the stave.

Figure 4 is a longitudinal sectional view through a portion of a stave, said View being taken on the line 44t of Figure 2.

Figure 5 is a side elevation of a modified form ofbinding element.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawing, the sections 1 of which the container is formed areplaced to gether in edgewise relation to each other and are provided by means of a saw, or other suitable implement, with longitudinally aligned grooves 2, which grooves taken together may constitute an endless groove around the container, or may be cut to provide a spiral of as 435 many turns as may be deemed advisable and running from end to end of the container.

A strand 3 of wire having its diameter sub-.

stantially greater than the width of the groove and having previously been out transversely along opposite sides, by means of a suitable tool, to provide laterally projecting teeth 4, is placed over the groove lengthwise 7 thereof and forced downwardly thereinto by light blows of a hammer, or by means of any suitable tool or machine, and as the saidgroove is preferably of a width substantially equal to, or very slightly less than, the diam eter of the uncut central portion of the wire er without the necessity of splitting crunder: A

the groove and lock the adjacent sections so firmly together that practically the only way that same can be separated is by wilful removal of the binding element.

It will thus be apparent that by means of my improved method the staves, or other forms of sections, are securely bound togethcutting the same so that said sections are. not

weakened in any, way which willtend to accentuate the danger of subsequent breakage. It'is' found that in "inserting the wire in the grooves the teeth describe a slight arcin cutting into the material which causes the portions of said material between the teeth to bind firmly against the teeth and-*make the removal thereof more diflicult." 1

In Figure 5 a modified form of binding element is showninwhich the wire is provided with a spiral thread 6 adapted to be forced into the surface of the material at each side which takes'the body of said of the groove wire. What I claim is The combination'with a barrel, or other similar article, providedwith a continuous spiral groove therearou11d, of a round binding element comprising a'central body'portion adapted to seat in said groove and laterally extending teeth from opposite sides thereof adapted to extend beyond the side walls of said groove and to be forced into said side walls inthe seating of said body. I

Signed at Toronto, Ontario, this 9th dayof February, 1929. r V e 'HOWARD BISHOP. 

